Bookbinding machine



Nov. 25. 1924- M. BECK BOOKBINDXNG KACHINE 17 Sheets-Sheet 1 Filed Jan.1s 1921 m wi Nov. 25 1924- M. BECK BOOKBINDING MACHINE Filed Jan. 19.1921 17 Sheets-Sheet 2 Nov. 25 1924- M. vBEcK BOOKB INDING MACHINE FiledJan. 19 `192] 17 Sheets-Sheet 5 Nov. 25, 1924. 1,516,697

M. BECK BOOKBINDING MACHINE Filed Jan. 19 1921 17 Sheets-Sheet 4 M www@@MMU/ff@ NOV. 25s 1924 M. BECK BOOKBINDING MACHINE Filed Jan. 1S i921 17Sheets-Sheet 5 @Q5/Le 66 e f Nov. 25, 1924. 1,516,697

M. BECK BOOKBINDI NG MACHI NE Filed Jan. 19 1921 17 Sheets-Sheet 6 Nov.25, 1924. 1,516,697

M. BECK BOOKBINDING MACHINE Filed Jan. 19 192] 17 Sheets-Sheet` '7 lim lNov. 25, 1924.

M. BECK ooxmmne IAGHINE Filed Jan. 19 1921 17 Sheets-Sheet 8 1vshaven-sheet 9 Filed Jan. 19 i:S21

NOV. 251 l 1,516,697 M. BECK BOOKBINDING MACHINE Filed Jan. 19 R92) l?Sheets-Sheet ll /UZ//kJ au @a f fave/2257@ Nov. 25, 1924. 1,56,697

M. BECK BOOKBINDING MACHI NEI Filed Jan. 19 :922 17 Sheets-Sheet l? Nov.25 1924 NL BEIZK BOOKBINDING MACHINE Filed Jan. 19 1921 17 Sheets-Sheetl5 [fuffa/Z0 M17 fr? Be c 2f Nov. 25, 1924. 1,516,697

M. BECK BOOKBINDING MACHINE Filed Jan. 19 1921 l? Sheets-Sheet 14 Nov,25, 1924.

M. BECK BOOKBINDING MACHINE N y w.

Nov. 25 1924- M. BECK BOOKBINDING MACHINE Filed Jan. 19 L92) 17Sheets-Sheet l5 .MMM/@m Nov. 25, 1924. 1,516,697

M. BECK BOOKBINDING MACHINE Filed Jan. 19 i92 17 Sheets-Sheet 17 YPatented Nov. 25, 1924.

UNITED vSTATES n 1,516,691 PATENT OFFICE.

MILTON BECK, F CHICAGO, ILLINOIS, ASSIG-NOB T0 JOSEPH J. WHITE, 0FCHICAGO, ILLINOIS.

BOOKBINDING MACHINE.

Application mcd January 19, 1921.

To all fwhom, t may commu:

Be it known that I, MILTON BECK, a citizen of the United States,residing at Chi cago, in the county of Cook and State of Illinois, haveinvented a certain `new and useful Improvement in Bookbinding Machines,of which the following is a full, clear, concise, and exact description,reference being had to the accompanying drawings, forming a part of thisspecification.

The present invention relates to book binding machines, and moreparticularly to a machine for performing certain operations incident tothe binding of round-backed books. The present machine is designed toreceive the stitched or bound groups of signatures or leaves composingthe book, and to thereafter successively present the book to mechanismsdesigned to operate thereon in a certain order of sequence forperforming the following operations on the book, to-wit: (1) roundingthe back of the book; (2) backing or expanding and upsetting the back ofthe book; (3) applying adhesive to the rounded and expanded back of thebook;

(4) applying a super to the adhesivecoated back of the book; (5)applying a second coatin of adhesive to the back of the super (i this benecessary); (6) applying a lining strip of paper over the back of thesuper.

One of the objects of the present invention is to provide an improvedconstruction of rounding mechanism for rounding the backs of the books.This rounding mechanisin is pneumatically timed and operated to the endof securing a more rapid operation, and a greater degree of adaptabilityof the mechanism to receiving different thicknesses of books Withoutad'ustment. The pneumatic operation of t is mechanism results in therounding rolls exerting a yielding pressure on the sides of the book,and alsor results in these rolls exerting a yielding rotational effortupon the sides of the book in imparting the rounded form thereto, sothat the rounding operation is performed without danger to the machineor to the book.

s a consequence of this ieldable characteristic the mechanism rea ilyadapts itself to slight variations in thickness of the book or anyirregularities therein, and avoids the positive, non-yielding actioncharacteristic of a purely mechanical operation.

A further object of the invention is to pro- Serial No. 438,300.

vide improved backing mechanism characterized by a higher s ed ofoperation than is obtainable in the acking mechanism of previous bookbinding machines of this class. The increased speed of the operatingcycle is attained in part by backing the book over appropriate edgesformed directly on the conveyor clamp 1n which the books are carriedinstead of first graspin each book in a special backing clamp an thenbacking the book over the edges of this clamp, as is A urther object ofthe invention is to provide improved and simplified mechanisms forapplying both lining strips, i. e., the super or strip of open-workwoven fabric, and the strip of lining paper which is superposed over thestrip of super. Owin to the fact that each strip of the aforesai liningmaterials must be appliedto the adhesive surface on the back of thebook, there is always the tendenc for the mechanism which applies thestrip of lining material to become fouled with any excess adhesive whichis squeezed through or over the edges of the lining material. As aconsequence the succeeding strips of lining tend to adhere to theapplying mechanism unless the operator diligently keeps this excessadhesive removed from the surfaces of the applying mechanism. In thepresent construction this difiiculty is obviated by so relating theapplying surfaces to a suitable immersion tank that after each operationof applying a strip of lining material and before receiving a secondstrip these applying surfaces are immersed in hot Water or any other liuid suitable for cutting and removing the g ue. Further objectsconcerned with the more minor mechanisms, and with the associatedapparatus interconnecting the above operating mechanisms are: to rovideim roved gluing apparatus which will permit t e discharge of excessadhesive conveyed to the back of the book and which `will accommodatethe lateral weaving motion of the chain conveyor; to provide an improvedconstruction of air compressor or pulsator for timing and operating theroundin mechanism and the mechanisms for closing and openingthevconveyor clamps in the operations of receiving and discharging thebooks; to provide improved driving mechanism for transmittin anintermittent step by step motion to t e chain conveyor, and forinterenerally performed in the prior art. y

mittently driving certain of the above operatin mechanisms at theirproper periods in t e operating cycle; to provide an imrovedconstruction of book clamp for makmg up the chain conveyor; and toprovide improved stop mechamsmior determining the position of the bookin the clamp atthe feeding opleration. Other objects involving other mecanisms and other operating parts will be set forth in the accompanyingdescription:

In the following detailed description, taken in connection with theaccompanying drawin s I have illustrated my invention in its preerredembodiment, but I wish it to be understood that the essence of themachine may be embodied in various modified constructions andarrangements, and that various features of the invention may be emgloyedin other relations than those herein isclosed.

In lthe drawings:

Figures 1 and 2 are divided plan views of the left and right halves ofthe machine respectively, the two figuresV being adapted to be joined atthe dash and dot line for a comprehensive view of the machine;

Figures 3 and 4 are similar elevational views of the machine, these twofigures likewise joining at the dash and dot line;

Figure 5 is an elevational view o f the rounding mechanism, taken fromthe inslde of the entire machine; v

Figure 6 is a plan view of the same;

Figure 7 is an end elevational view showing the rounding rolls graspinga book;

Figure 8 is a side elevational view of the backlng mechanism, the lowerpart of the supporting frame being broken away to illustrate themechanism on a larger scale;

Figure 9 is a longitudinal sectional view through the adhesive applyingapparatus, illlstrating the mounting of the adheslve rol Figure 10 is atransverse sectional view thlough the axis of the adhesive applying roFigure 11 is an end view, partly in elevation and partly in section ofthe super applying mechanism;

Figure 12 is an elevational view of the same from the inside of themachine, certain of the parts being broken away to illustrate theconstruction;

Figure 13 is an end view of the paper lining applying mechanism, withparts of the construction broken away;

, Figure 14 is a fra mentary elevational view of the feeding rol andcutting discs of the above mechanism;

Figure 15 is a fragmentary view of the arrangement of cutting blades forsevering the strip of paper; f

Figure 16 is a view, partly in elevation and partly in section, of thepaper lining applyingl mechanism, as viewed from the inside of t emachine;

Figure 17 illustrates a modified construction of lining applyingmechanism;

Figure 18 is an elevational view of the system of Geneva gears fortransmitting the intermittent motion to the chain conve or and to theseveral intermittently operating mechanisms; Figure 19 is an elevationalview illustrating 1n isolated relation the advancin mechanlsm forintermittently advancing t e feed roll shaft;

Figure 20 is an enlarged plan view of one of the book clampsconstituting part of the chain conveyor;

Fi re 21 is a fragmentary side elevationa view of the air compressor orpulsator;

Figure 22 is an enlarged detail elevational view of one of theeccentrics, illustrating the arrangement whereby the timingof theeccentrics may be adjusted;

Figure 23 is a detail sectional View through the valve housing of theabove compressor; and

Figures 24, 25 and 26 are fragmentary plan, front and side elevationalviews respectively, of the stop arm mechanism for gauging the insertionof the books into the book clamps.

(lon/veyor mechanism and general stmctwe.

i I shall first describe the general structure of the machine and theoperation of the conveyor mechanism, and then take up in detail each ofthe machines or operating units performing the operations aboveoutlined, referring to these machines in the sequence in which theyoperate upon the books so that the progressive order of the cycle willbe plainly apparent. The books b are ada ted to be conveyed from one tothe other o the several operating mechanisms throu h the medium of anendless conveyor 10 wich is adapted to move in a horizontal plane aroundtwo end sprocket wheels 11-12. For clarit of the subscqlxlientdescription I shall brie y enumerate t e various mechanisms which aredisposed around the circuit of the conveyor 1n the manner of stationsfor erforming the successive operations Yon t e books. As clearly shownin Figs. 1 and 2 (when joined) the books are inserted in the conveyor 10at the oint A; at the station or machine A the oks are rounded; at themachine B the rounded backs of the books are upset or backed; at thepoint C the adhesive is a plied to the backs of the books; at .themechanism D the super is a plied; at the point E a second coating oadhesive is ap lied over the super; at the mechanism F t e liner strip.is applied; and at the point G the books are discharged. The conveyor10 is constructed in the form of a chain consisting of a series of linkspivotaly connected together, each link being arranged to carry a book.As shown in Figure 20, each link is constructed as a spring pressed bookclamp and comprises an inner link bar 14 and an outer clamping plate1x5. Each link bar is formed at one end with a pivotal tongue 16 and atthe other end is bifurcated, as indicated at 17, for the reception ofthe pivotal tongue 16 of the next succeeding link. The tongue 16 andbifurcated end 17 are apertured to receive a suitable pivot pin 18. Theface of the link bar 14 is recessed as indicated at 19 to provide arectangular openin for receiving the book, the book being he d in saidrecess in vertical position and engaging the rear shoulder 21 (withreference to the direction of motion) which acts as a positioning stofor insuring the proper placing of the book in the series of clamps. Thebook is firmly held in the recess 19 by the `outer clamping plate 15,which is normally drawn towards the link bar 14 under tension imposedupon spring bolts 22-22 extendin from the ends of the clamping plate 15.T ese spring bolts ass through guide hubs 23 at the ends of t e link bar14 and extend inwardly from the link bar for su porting compressionsprings 24. To malga the clamp more compact and to give a greater len hof spring, the openin in the rear of eac hub 23 is counterbore asindicated at 25 for retaining the inner end of the spring 24. The otherend of each sprin 24 en ages against a washer 26 and nut 2 threa ingover the end ofthe spring bolt 22. The widths of the book engaging facesin the recess 19 and on the outer clamping plate 15 are increased by theprovision of flange extensions 28 extending lon itudinally along thebottom of the link ar 14 and along the bottom of the clamping plate 15.The purpose of these flange extensions is to provide a propriate backingedges on the bottoms of t e book clamp members over which the side ed esof the book are backed, as will be described in the backing operation.The inner face of the link bar 14 is formed with a rounded recess 29,intermediate the hubs 23-23, for engaging with the cooperating sprocketends 31 1n the rim of the sprocket wheels 11 and 12. The rim or felloeof each sprocket wheel 11 and 12 is of right angle cross sectionconsisting of a horizontal and an outer vertical ange Figure 4), theouter edge of the horizontal ange being beveled downwardly as indicatedat 33 ,to facilitate the engagement of the link bars 14 upon thehorizontal flange of the wheel rim. The sprocket pins 31 areequi-distantly spaced about the rim for engagement with the successivelinks, each pin projecting above the plane of the wheel 11 forengagement in the recess 29 and havtwo end pedestals 41 and 42. Thepedestals 41 and 42 are each provided with a flan ed base 43 which isbolted to the floor or ot er bed surface by bolts 44. The bolts extendthrough longitudinal slots 45 in the, base so as to permit oflongitudinal adjustment of the pedestals relative to each other, theright hand pedestal 42 being provided with a justing screws 46 whichengage in a sta.- tionary plate 47 and permit longitduinal adjustment ofthe pedestal 42 for taking up slack in the chain conveyor 10.

As best shown in Figures 1 and 3, the drive for the chain conveyor andthe several operating mechanisms is from an electric motor or othersuitable source of power to the high speed shaft 48 of a speed reducinggear unit 49. Here the high speed is transformed into a lowI speed, hi htorque drive which is transmitted to the sort drive shaft 51. This shaftis extended through the hollow pedestal 41 and has spaced bearingsupport in the two bearings 52 and 53 on opposite sides of the pedestal.Mounted on this short drive shaft is a ily wheel 54 and a spur gear 55,the latter of which meshes with a relatively larger spur gear 56 on thelongitudinally extending main drive shaft 57. This main drive shaftextends from' the pedestal 41 to the pedestal 42 at the other end of themachine and has bearing support at each end in laterally extendingbearings 58 and 59 projecting from the sides of the pedestals. To theright of the pedestal 41 is located a casting in the form of a bearingsupport 61 for supporting the system of Geneva gearing which transmitsthe intermittent motion to the link conveyor 10, and to certain of theoperating mechanisms of the machine. This bearing sup rt 61 is providedwith two spaced bearlngs 62 and 63 for supporting the main drive shaft57, and mounted on this drive shaft intermediate these bearings are apair of male Geneva gears 64 and 65. These male Geneva gears are adaptedto 'have intermittent mesh with two cooperating female Geneva gears 66and 67 of re1atively larger diameter which are mounted on independentshafts 68 and 69 extending parallel to the main drive shaft 57.

Referring particularly to Figure 18, it will be observed that each ofthe male Geneva gears 64 and 65 consist of a wheel having a laterallyflan ed circumference and provided with ears l extending from thelateral flanges 72. Two pairs of these ears extend out from thecircumference of the wheel at diamctrically opposite oints, the ends ofthese ears being formed) with

